Tend to find, saville row shirts are quite nice, the full cotton herringbone ones. Key is to get something well fitting that doesn't crumple in the wrong places.

Also, I'm really put off when guys where suits that are just way tooo tight. Different story when it comes to girls of course but that's a separate matter.

I've also put together a similar post geared mainly towards graduates and interview dress with visual aids! : http://consultinggrad.wordpress.com/2010/02/11/st...

First of all, thanks to Florian for mentioning the "1 striped part max" rule (I've seen managers turn up with pinstripe suit, striped shirt and regimental tie… Argh). Depending on your employer, striped shirts and striped ties might be a no-no, so don't overdo it.

In general I find very valuable (and incredibly, I tend to agree with) everything that's written in the post: the next step (assuming you can dress decently) would be matching the features of your garments to your body type.

If you're quite tall, or quite thin, or both, you should have a wide, more spread-out collar, a slightly wider tie with a wide knot (no, I didn't say "loose", I said "wide", as in half Windsor, Windsor or even Balthus knot), a double-vented suit with three buttons, and wear your trousers regular at the waist (as in, non low). Basically you should avoid to give a "vertical" quality to your outfit.

Similarly, if you're not very tall, a bit heavier, or both, you should have low, narrow collars, prefer narrow ties and knots (four in hand, Pratt or half Windsor knots), single-vented suits with two buttons, and (in absence of a considerable belly) wear your trousers a little lower. This is to give that "vertical" quality to your outfit.

In case you have no idea what the knots I talk about are like, either FGI (best practice) or refer to http://www.totieatie.com.

As for shoes, alternating pairs really does make a difference: you give the shoe time to cool and dry off, and your feet have more time to adapt to a new pair. Please note however that the welting does not automatically make a good (or bad) pair of shoes. Goodyear-welted shoes are the most durable, arguably the most comfortable shoes you can build (Church's, anyone?); however, you can easily spend in excess of 400 euro on a pair of fantastic Blake-welted shoes, and you wouldn't have wasted your money.

I'd go on rambling on why, if you are giving a talk or if you are the one who must "steer" a difficult meeting, you're going to want to wear a white shirt and a bright tie with a big knot, while if you know you're invited to a meeting full of big-shots to take notes you'd better wear a blue tie with a small knot (and try to blend in the wallpaper while you draft the minutes), but I'll leave the pleasure to the good Florian, who I'm sure has already it all planned (along with a post on shaving, haircust and general grooming, I'd wager).